Had oil change a couple of days ago, P0441 code appeared, noticed the top of the air filter container had only one latch on, while the back of the lid was open, could this caused the code to appear

 

its evap system code so i don't think so check your gas cap and make sure your vacum hoses and other hoses are hooked up right
here is a link to what the codes mean
https://dodgeforum.com/forum/1st-gen...ine-light.html

 

im gonna move this (i hope correctly, if not let me know and ill get it in the right section for you)

however, yes he is right, it could be the gas cap or any number of evap hoses with cracks in them, including the hoses at the evap canister underneath the truck